Daniel mcfarlan moore



(No Model.)

1). McF. MOORE. PHOSPHORBSGENT ELECTRIC LIGHT GONDENSBR AND AGGUMULATOR.No. 548,575. Patented Oct. 22, 1895.

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UNITED STATES PATENT OFFIcE.

DANIEL MCFARLAN MOORE, OF NEW YORK, N. Y., ASSIGNOR TO THE MOOREELECTRICAL COMPANY, OF SAME PLACE.

PHOSPHORESCENT-ELECTRlC-UGHT CONDENSER AND ACCUMULATOR.

SPECIFICATION forming part of Letters Patent No. 548,575, dated October22, 1895.

Application filed January 24, 1895. Serial No. 536,037- (No model.)

To all whom it may concern:

Be it known that I, DANIEL MCFARLAN MOORE, a citizen of the UnitedStates, and a resident of New York, county and State of NewYork, haveinvented certain new and use* ful Improvements in Phosphorescent-Elec=trio-Light Condensers and Accumulators, (Case No. 16,) of which thefollowing is a specification.

This application forms one of a series relating to the production ofphosphorescent electric light on the Moore principle of the disruptivedischarge of dynamic currents in mean.

The present invention relates generally to the accumulation of the lightthus produced by the action of condensing the electricity, accompaniedby the light, upon metallic surfaces, and by the use of insulatingmedia.

The invention relates also to certain modifications of the genericinvention.

Figure 1 is an elevation, partly in diagram, illustrating the manner ofcarrying my invention into effect. Fig. 2 shows means whereby theelectricity may be so condensed at a desired point as to produce lightWhere no light had been before produced without a condenser. Fig. 3 is aview, partly in diagram, of what may be conveniently termed a vacuumconverter. Fig. l shows, partly in diagram, what may be called aLeyden-jar lamp or means for storing light. Fig. 5 is a view, partly insection and partly in diagram, of a modification of a part of that whichis shown in Fig. i.

In Fig. 1, 1 is an evacuated inclosure in the form of a bulb having alarge rounded end covered with a metallic coating 2 and 3,10- cated,respectively, on the inner and outer surfaces and formed of a. metallicpaint or tin foil, or any other metallic foil, or of any form ofmaterial, as long as it is an electric con ducting coating.

4 is an electric conductor extending from the small end of the bulb andterminating in contact with'the inner coating 2. This condoctor 4 formsan extension from an electric circuit of the generator 5, passingthrough and including a magnet 6, a spring terminal 7, having anarmature within inductive relation of the magnet and located within theevacuated bulb l, the fixed terminal 8, and the conductor 9, whichcompletes the circuit to the generator.

From the construction it will be understood 5 5 that upon the passage ofan electric current from the dynamo 5 the current will be rapidlyinterrupted at the terminals 7 and 8, and in view of pendingapplications upon a similar class of inventions already filed by me itshould be understood that the wire 4 becomes luminous with acomparatively low dynamo and that the whole bulb becomes a lightproducer and the vacuum is about that which would be produced by anordinary mechanical air-pump. The outside coating 3 is con nected toearth 10. In view of the glass partition between the two coatings and inview of the electric potential of the wire 4 the electricity and thelight effect caused thereby becomes accumulated and increased,especially by having a good earth connection between the coating 3 andthe ground 10.

Referring more particularly to Fig. 1' is a glass tube properlyexhausted and having 7 5 the vibratory terminals as before, 7 and 8,which in this instance may be included in a circuit, as in Fig. 1, or,as shown in Fig. 2, they may be included in a different circuit fromthat of the magnet 6. They are shown in form as in a secondary circuitof an induction-coil 6', whose primary is in circuit with the generator5'. The magnet 6 is alternately magnetized and demagnetized in view ofthe rotary interrupter 11 in circuit with the magnet 6 in Fig. 2. Theconductor 4' is shown as carried from the terminal 7 throughout thelength of the tube and inside thereof and then outside in such a manneras to be included in circuit with the secondary coil of the trans- 0former 6' and with the terminals 7 and 8.

If the circuits are arranged and completed as described, so that thesecondary current may pass through the terminals and so that the magnet6 produces rapid interruptions at 9 5 the terminals 7 and 8, then thelight will appear as a brilliant illumination around the whole length ofthe wire l; or if the currents are not sufficiently strong, or if thetube 1 is too long in proportion to the electrical dimenroe sions of theelectrical features, then will light only appear at the two ends of thetube, while it will be dark between the ends; but if one grasps thecentral part of the tube by his hand, as represented at 12, an immediatepro-' duction of light will appear as radiated-between his fingers andin the neighborhood of his hand within the tube. On taking away the handthe light ceases, but still remains at the ends of the tube. as often asdesired. It is thought that the hand represents either an earthconnection,

or else a large mass of matter adapted to be-.

come electrified and thereby produce a condensing action, for this sameeffect is produced by placing near the tube a large mass, and it isproduced by actually surrounding and touching the tube with anyconductor or semi-conductor having a good or bad earth connection.

In Fig. 3, as in Fig. 1, the evacuated incloswe is represented by 1, andthe remaining elements, in so faras they are'shown, areine dicated bythe-samereference-numerals, this case the coatings 2 and 3are omittedand the conductor 4 is extended through the Wall of the inclosure andterminated by ametallic ball 13, from which, when the deviceisinoperation, sparks may be obtained, even if the magnet 6 is not a verypowerful self-induction device; but, of course, the higher theeleotromotive force in the circuit 9 the greater the sparks which mayobtained at the ball 13 by bringing to it a conductoror semi-conductornot similarly electrified. This device may be employed for chargingLeyden jars or similar condensers, and for performing the same functionsaspossessed by the Ruhmkorff coil or the Holtz frictional machine.manner of modifying this device for the purpose of producing greaterstatic eifectsthan by increasing the electromqtive force in the circuit9 consists in increasing the length of the wire 4 by coiling it or bydoing both things.

In so far as the parts correspond to those shown in Fig. 1 the sameareindicated by the:

same numerals in Fig. 4. The conductor 4 is electrically connected bysprings 14 to the, As in Fig. 1, it is extended inner coating2. to thewall 2 and terminated by the metallic coating 15, and the coating 3 isconnected to theearth 10. 1" is a glass bulb which sur rounds thedevice, so that an evacuated space may be the location of the ball 13andthe outer coating 3. the inner surface of the bulb 1", softhat it isopposite at least a portion of the coating3. Between the coatings 15 and3 are suspeded,;

of accidents, when lights suddenlygo out in. dwelling-houses, and astakes place after a. certain hour of the night, this device willcontinue to give out light because of the electrical energy storedtherein. manner that a storage-battery is a means for This mayberepeated The.

The coating 15 is located on.

In the same storing up new chemical compounds for producing electricity,so this maybe called a device for storing light, because it accumulateselectricity for producing light. The operation ofthe device after oncestored is automatic. The balls 17 are attracted to the coat ing 15 andbecome charged with a load of electricity of one polarity and of thesame polarity as that upon the coating 15. Then the balls, after'beingfully charged, are repelled by virtue of the principle that like,electricities repel and unlike attract, and at the same time they areattracted by the same (principle to the coating 3, where they give uptheir charge to the earth. They are then again attracted tothe-coating15, and so they move back and forth very rapidly, each timeproducing sparks, which may be said to exist throughout the vacuum,producing brilliant illumination. The balls 17 move very rapidly andveryirregularly, so that the average effectis a practicallycontinuouslight, and as the balls are made ofelder-pith they produce no sound,although they vibrate back and forth very rapidly.

In order to keep the light stored until wanted the earth connection at10 may be completely broken at the same time that the dynamo 5 is cutoff. When the light is wanted the earth connection may be made, and therents of com paratively low potential into electricity of very muchhigher potential.

At the same time the device falls under the name of anaccumulator,.because the ball 13 collects electricity upon its surfacein proportion to thesize of the surface, and thesame may be transferredto translating devices which are to be operated by the staticelectricity.

The opaque coatings 2 and 3 do not cause :the loss, materially, ofthel-ight, because the surface of the coating 2 is arranged upon aconcave, spherical, or conical surface, and

.therefore'the light is radiatedinto space in a concentric manner. Theform of this surface .maybechanged to suit the requirements of the case.

Itis evident that a modification of the invention shown inFig. 4 mayconsist in having ;the tube'l" communicating with the tube 1,

so-that both may be exhausted together and considered as oneevacuatedspace. This con struction, omitting the electrical features, is shown inFig.5, the point of exhaustion and sealing being at 19, the tube 1 beingopen at the lower end 1 and preferably closed at the opposite eachother, an electric conductor connecting the inner coating with thecircuit of the terminals, and an electric conductor con-,

nected to ground.

2. A phosphorescent electric light accumu lator, consisting of thecombination of an evacuated insulating inclosure, vibratory electricterminals therein, metallic coatings upon portions of the inner andouter surfaces of the insulating material of the iuclosure and oppositeeach other, and an electric conductor connecting the inner coating withthe circuit of the terminals.

3. A vacuum converter consisting of the combination with an evacuatedinclosure having separable contacts normally touching each other andincluded in an electric circuit of an electric conductor extendingthroughout the evacuated space through the wall of the iuclosure andterminated by a ball or mass of material.

4. A phosphorescent electric light accumulator consisting of thecombination of concentric evacuated i-nclosures, the first having innerand outer metallic coatings, and containing vibratory electric contactswithin sparking distance of each other, and electrically connected tothe inner coating of the first inclosure, which coating is alsoconnected to the inner coating of the second inclosure, and flexiblysuspended balls located between the last named coating and the outercoating of the first inclosure.

5. A phosphorescent electric light accumulator, consisting of thecombination of an evacuated inclosure, containing a condenser made of aninsulating sheet and metallic coatings on opposite sides thereof,vibratory electric contacts normally touching each other andelectrically connected to the same coating and carried around theinsulating material to points opposite the other coating, and means forintermittently and gradually discharging the condenser Within thevacuum.

6. A phosphorescent electric light accumulator consisting of thecombination of an evacuated inclosure containing a condenser made of aninsulating sheet, and a metallic coating on opposite sides thereof, adevice for charging the condenser with elect icity, and means for slowlydischarging the condenser at points within the vacuum,for the purpose asset forth of producing light.

7. A phosphorescent electric light accumulator consisting of thecombination of an evacuated tube, separable electric contacts, normallytouching each other, located at one end of the tube and having a returnwire passing throughout the length of the tube and located in circuitwith the secondary coil of a given electric transformer 6, means forcausing the terminals to vibrate toand from each other, and a conductoror semi-conduc tor located at or near the tube.

In testimony that I claim the foregoing as my invention I have signed myname, in pres ence of two witnesses, this 8th day of January, 1895.

DANIEL MOFARLAN MOORE.

Witnesses:

EDWARD P. THOMPSON, W. G. Havens.

